Storing sealed booster box in safe?

Hey guys,

I have 5 Japanese 151 sealed boxes that I plan just sitting on for the next few years and waiting it out to see if they go up in value. My question is I have had them in my safe for about 6 months still originally sealed. Most of the time my home is between 40-65% humidity and there is no direct sunlight. Do you guys think it’s ok/safe to keep them in the safe untouched? I just worry about time going by and worried they get damage. They have the original plastic sealing over them too. Would love your thoughts/advice please and thanks for your time.

Happy collecting/investing everyone 🤙🏻👊🏻